Banned till 2552 randomly

I’m not sure if anybody else has had this problem… I stopped playing Halo for a couple weeks to build a new PC. Got it up and running, hopped on Halo MCC to find out I’m banned for the next 500 years with no reason or anything of the sort? I’m not sure if it’s a bug or glitch, but 343 can clearly see I wasn’t playing for that span of a week or two. I’ve made endless tickets, tweets, emails, even tried appealing my “temp ban” and nothing has been done. Does anybody know if it’s just a glitch and I can do something to fix it or what? Never cheated or anything of the sort so it just doesn’t make sense. I can’t even stream on my main account anymore. If anyone knows anything, let me know. Thanks.